G.f. A(x) satisfies A(x) = 1 / (1 - x*A(x) / (1+x))^4.
A371496
G.f. A(x) satisfies A(x) = 1 / (1 - x*A(x) / (1+x))^4.
Terms
- a(0) =1a(1) =4a(2) =22a(3) =156a(4) =1233a(5) =10420a(6) =92120a(7) =841376a(8) =7876616a(9) =75177492a(10) =728784802a(11) =7156081536a(12) =71024862452a(13) =711383912672
External references
- oeis: A371496